Grade 541 Ashless Fast Filter Paper, 150mm Circles (100 pcs) SKU: 1541-150

Quantitative Ashless Filter Paper - 1541-150

Methods specifying filter ignition with collected precipitate demand ash contributions that remain negligible and predictable across production lots. Certificate of analysis provides lot-specific ash content values for incorporation into method blank calculations and quality records. Because of this, lot-level verification of retention, thickness, and ash content ensures predictable performance when scaling from method development to routine analysis.

Key Filter Paper Characteristics

• Tightly controlled manufacturing produces documented ash content that remains consistent across production lots for method reproducibility.
• Manufactured under controlled acid washing conditions, each sheet delivers consistent ash levels across production lots for method reproducibility.
• Smooth surface finish facilitates complete precipitate recovery and clean separation from the paper during transfer operations.
• Resin treatment provides the tensile strength to resist tearing under vacuum, even when processing large sample volumes.
• Designed for gravimetric determinations where the filter paper is ashed or ignited as part of the analytical measurement step.

Whether your method requires simple clarification or precise gravimetric determination, the documented specifications above define what this paper delivers. For this purpose, documented ash specifications on every lot give you the traceability your regulated analytical methods and quality audits require. Make the decision for consistency and reliability, ensuring that your laboratory maintains its reputation for high-quality, error-free output.

Diameter

150mm

Flow Speed

Fast

Folded/ Fluted/ Pleated

No

Grade

541

Hardened (Yes/ No)

Yes

Material

Cellulose Fiber

Nominal Ash Content (%)

<0.006%

Nominal Basis Weight (g/ m²)

82g/m²

Pack Count

100

Particle Retention

22um

Pore Size (µm)

20.0-25.0

Qualitative/ Quantitative

Quantitative

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

Yes

Wettability

Hydrophilic

• Chloride Gravimetry - Retains silver chloride precipitate for mass-based chloride determination in water quality and process control.
• Silica Determination - Captures dehydrated silica for gravimetric analysis in cement, geological, and industrial raw material testing.
• Total Ash Testing - Provides the ultra-low blank needed for accurate ash determination in food, pharmaceutical, and material samples.
• Nickel Determination - Retains nickel dimethylglyoxime precipitate for ignition-based quantification in alloy and plating bath testing.
• Phosphate Gravimetry - Collects magnesium ammonium phosphate precipitate for ignition to pyrophosphate in soil and fertilizer analysis.
• Lead Quantification - Captures lead sulfate precipitate for gravimetric determination in environmental and industrial samples.